Hawkins, R. R. 1. . . e. (1958). Scientific, medical and technical books published in the United States of America; a selected list of titles in print, with annotations (2nd ed., books published to December 1956. Prepared under the direction of the National Academy of Sciences, National Research Council's Committee on Bibliography of American Scientific and Technical Books.). s.n.
Παραπομπή σε μορφή Chicago (17η εκδ.)Hawkins, Reginald Robert 1902- ed. Scientific, Medical and Technical Books Published in the United States of America; a Selected List of Titles in Print, with Annotations. 2nd ed., books published to December 1956. Prepared under the direction of the National Academy of Sciences, National Research Council's Committee on Bibliography of American Scientific and Technical Books. Washington: s.n, 1958.
Παραπομπή σε μορφή MLA (9th εκδ.)Hawkins, Reginald Robert 1902- ed. Scientific, Medical and Technical Books Published in the United States of America; a Selected List of Titles in Print, with Annotations. 2nd ed., books published to December 1956. Prepared under the direction of the National Academy of Sciences, National Research Council's Committee on Bibliography of American Scientific and Technical Books. s.n, 1958.